Who said that the developers will add Poland?
yes they said that this year they will add 2 new companies with new mechanics
but there is no hint that it will be Poland, these companies may be the Winter War, or the Invasion of France
Why?
because there are already French and Finnish weapons in the game + there is a sound of French airborne assault in the files
About Poland 
if they add a Polish campaign, they should make Poland independent at the initial stage of the war, Poland had weapons of its own production and joint production with other countries. Their Pistols Machine guns Shotguns Machine guns and Self-loading rifles
(Google translate)
The game even has a good anti-tank rifle (squad per event) (Wz)
Poland also had not bad Aviation tanks, too, there were even many varieties of them
The developers could well make the mechanics like the Japanese did so that the Poles would not fall for the Tigers or Panthers, but only Pz-2 or Pz-3 not stg44 but mp-38
The idea of countries like Romania Poland Hungary Britain Italy and beyond being Axis and Allies is disgusting
this function can only be done by commonwealth countries by uniting them with Britain
I am for all countries to have their own branches of development and have independent Factions in the game 
+:it:+:de:+:us_outlying_islands:+:poland:+:cn:
+:fr:+:andorra:+:hungary:in the future I look forward to all these countries in the game BUT INDEPENDENT
but about the battle rating The developers take care of this, it’s not such a big problem, I could offer a lot of things for this, but unfortunately Google translate can’t translate some of my thoughts 
they could make it so that the detachments were, for example, opened one detachment of engineers from the Germans, this detachment will be open in all campaigns and then you need to equip these engineers, each detachment separately in the Moscow company with weapons that are short in Moscow in Berlin in Stalingrad onologically (here is the solution 
